Publish on release

Author: ramosbugs

.github/workflows/ci.yaml

@@ -7,6 +7,8 @@ on:
     branches: [ main, unsquashed-private ]
   pull_request:
     branches: [ main, unsquashed-private ]
+  release:
+    types: [ published ]
 
   # Run the pipeline daily so that we get continuous dogfooding and coverage of the latest Python
   # and PyTest patch versions.
@@ -133,7 +135,7 @@ jobs:
 
   publish:
     name: Publish to PyPI
-    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+    if: github.event_name == 'release' && startsWith(github.event.ref, 'refs/tags')
     runs-on: ubuntu-latest
     needs:
       - check